Bring 2 cups water to a boil. Add brine mix and stir until dissolved. Pour over ice in a flat bottomed resealable container. Add chicken, then add additional water until chicken is submerged. Brine for at least 5 hours or up to 12 hours.
Remove chicken from brine and rinse with cold water. Pat dry on a paper towel, then pound down the thicker end of the chicken breast until they are even thickness across.
Rub the chicken with 1 tsp olive oil until evenly coated. Season with salt, pepper, chili powder, and Flavor God seasoning.
Air fry the chicken at 380 degrees for 11 minutes, flipping halfway through until the internal temperature reaches 165°. Set aside to cool for about 5 mintes before slicing. (Note: you can also grill the chicken at 400° for 6 minutes, then flip and grill another 5-6 minutes depending on thickness).